title: CFTR protein repair therapy in cystic fibrosis.
abstract: Cystic fibrosis is a single gene, autosomal recessive disorder, in which more than 1,900 mutations grouped into 6 classes have been described. It is an example a disease that could be well placed to benefit from personalised medicine. There are currently 2 very different approaches that aim to correct the basic defect: gene therapy, aimed at correcting the genetic alteration, and therapy aimed at correcting the defect in the CFTR protein. The latter is beginning to show promising results, with several molecules under development. Ataluren (PTC124) is a molecule designed to make the ribosomes become less sensitive to the premature stop codons responsible for class i mutations. Lumacaftor (VX-809) is a CFTR corrector directed at class ii mutations, among which Phe508del is the most frequent, with encouraging results. Ivacaftor (VX-770) is a potentiator, the only one marketed to date, which has shown good efficacy for the class iii mutation Gly551Asp in children over the age of 6 and adults. These drugs, or a combination of them, are currently undergoing various clinical trials for other less common genetic mutations. In the last 5 years, CFTR has been designated as a therapeutic target. Ivacaftor is the first drug to treat the basic defect in cystic fibrosis, but only provides a response in a small number of patients. New drugs capable of restoring the CFTR protein damaged by the most common mutations are required.
authors.affiliation: Unidad de Fibrosis Quística, Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, Sevilla, España; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, España. Electronic address: esther.quintana@telefonica.net.
authors.forename: Esther
authors.initials: E
authors.lastname: Quintana-Gallego
authors.affiliation: Unidad de Fibrosis Quística, Servicio de Pediatría, Hospital Universitario Virgen del Rocío, Sevilla, España.
authors.forename: Isabel
authors.initials: I
authors.lastname: Delgado-Pecellín
authors.affiliation: Unidad de Fibrosis Quística, Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, Sevilla, España; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, España.
authors.forename: Carmen
authors.initials: C
authors.lastname: Calero Acuña
mesh_terms: D000627:Aminophenols / Q000627:therapeutic use; D003550:Cystic Fibrosis / Q000188:drug therapy*; D019005:Cystic Fibrosis Transmembrane Conductance Regulator / Q000187:drug effects* / Q000235:genetics; D006801:Humans; D058990:Molecular Targeted Therapy; D009154:Mutation / Q000187:drug effects; D015363:Quinolones / Q000627:therapeutic use
chemical_list: D000627:Aminophenols; D015363:Quinolones; D019005:Cystic Fibrosis Transmembrane Conductance Regulator; C545203:ivacaftor
keywords: Aatluren; Ataluren; CFTR corrector; CFTR modulator; CFTR potentiator; Cystic fibrosis transmembrane conductance regulator; Fármaco corrector; Fármaco modulador; Fármaco potenciador; Ivacaftor; Lumacaftor; Proteína reguladora de la conductabilidad transmembrana de la fibrosis quística